Finding the Fourth Proportional to 74,425.01, 102,636.14 and 48,886.31
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Solution
The fourth proportional to 74,425.01, 102,636.14 and 48,886.31 is: 67,416.89
Step by Step Solution
- Step 1: Write the proportion equation
74,425.01 : 102,636.14 = 48,886.31 : x - Step 2: Convert to fraction form
74,425.01/102,636.14 = 48,886.31/x - Step 3: Cross multiply
74,425.01x = 102,636.14 × 48,886.31 - Step 4: Simplify right side
74,425.01x = 5,017,502,169.40 - Step 5: Solve for x
x = 5,017,502,169.40/74,425.01 - Step 6: Final answer
x = 67,416.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.